<template>
  <div class="xtx-cart-page">
    <div class="container">
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>购物车</XtxBreadItem>
      </XtxBread>
      <div class="cart">
        <table>
          <thead>
            <tr>
              <th width="120"><XtxCheckbox :model-value="AllSelected" @change="AllCheckChange">全选</XtxCheckbox></th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <tr v-for="i in list" :key="i.id">
              <td>
                <XtxCheckbox
                  :model-value="i.selected"
                  @change="(selected) => checkChange(i, selected)"
                />
              </td>
              <td>
                <div class="goods">
                  <RouterLink to="/"
                    ><img :src="i.picture" alt=""
                  /></RouterLink>
                  <div>
                    <p class="name ellipsis">{{ i.name }}</p>
                    <!-- 选择规格组件 -->
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ i.nowOriginalPrice }}</p>
                <p>
                  比加入时降价
                  <span class="red">&yen;{{ i.price - i.nowPrice }}</span>
                </p>
              </td>
              <td class="tc">
                <XtxNumBox :isLabel="false" :modelValue="i.count" @change="(num) => numChange(i,num)"/>
              </td>
              <td class="tc">
                <p class="f16 red">
                  &yen;{{ (i.nowOriginalPrice * i.count).toFixed(2) }}
                </p>
              </td>
              <td class="tc">
                <p><a class="green" href="javascript:;" @click="del(i.skuId)">删除</a></p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action">
        <div class="batch">
          共 {{ allCount }} 件商品，已选择 {{ selectedAllCount }} 件，商品合计：
          <span class="red">¥{{ selectedAllPrice }}</span>
        </div>
        <div class="total">
          <XtxButton type="primary" @click="buildOrder">下单结算</XtxButton>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import { computed } from 'vue'
import { useStore } from 'vuex'
import { useRouter } from 'vue-router'
import { message } from '@/components/Message'

export default {
  name: 'XtxCartPage',
  setup () {
    const store = useStore()

    // 单选
    function checkChange (i, selected) {
      store.dispatch('cart/asyncCheck', { skuId: i.skuId, selected })
    }

    // 全选
    function AllCheckChange (selected) {
      store.dispatch('cart/asyncAllCheck', selected)
    }

    // 删除
    function del (ids) {
      store.dispatch('cart/asyncDelCart', [ids])
    }

    // 数量
    function numChange (i, count) {
      console.log(i, count)
      store.dispatch('cart/asyncChangeNum', {
        skuId: i.skuId,
        selected: i.selecked,
        count
      })
    }

    const selectedAllCount = computed(() => store.getters['cart/selectedAllCount'])
    const router = useRouter()
    // 下单结算
    function buildOrder () {
      if (selectedAllCount.value > 0) {
        router.push('settle')
      } else {
        message({ type: 'warn', text: '请先选中商品' })
      }
    }
    return {
      list: computed(() => store.state.cart.list),
      allCount: computed(() => store.getters['cart/allCount']),
      selectedAllCount,
      selectedAllPrice: computed(() => store.getters['cart/selectedAllPrice']),
      AllSelected: computed(() => store.getters['cart/AllSelected']),
      checkChange,
      AllCheckChange,
      del,
      numChange,
      buildOrder
    }
  }
}
</script>
<style scoped lang="less">
.tc {
  text-align: center;
  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}
.red {
  color: @priceColor;
}
.green {
  color: @xtxColor;
}
.f16 {
  font-size: 16px;
}
.goods {
  display: flex;
  align-items: center;
  img {
    width: 100px;
    height: 100px;
  }
  > div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;
    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}
.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;
  .xtx-checkbox {
    color: #999;
  }
  .batch {
    a {
      margin-left: 20px;
    }
  }
  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}
.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}
.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;
    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;
      th,
      td {
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;
        &:first-child {
          text-align: left;
          padding-left: 30px;
          color: #999;
        }
      }
      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
</style>
